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https://www.readbyqxmd.com/read/28214384/placental-pathology-in-hiv-infection-at-term-a-comparison-with-hiv-uninfected-women
#1
Emma Kalk, Pawel Schubert, Julie A Bettinger, Mark F Cotton, Monika Esser, Amy Slogrove, Colleen A Wright
OBJECTIVES: To describe and correlate placental characteristics from pregnancies in HIV-infected and HIV-negative women with maternal and infant clinical and immunological data. METHODS: Prospective descriptive study of placentas from term, uncomplicated vaginal births in a cohort of HIV-infected (n=120) and HIV-negative (n=103) women in Cape Town, South Africa. Microscopic and macroscopic features were used to determine pathological cluster diagnoses. The majority of HIV-infected women received some form of drug treatment for the prevention of vertical transmission of HIV...
February 18, 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/28214275/detection-of-pneumocystis-jirovecii-by-nested-pcr-in-hiv-negative-patients-with-pulmonary-disease
#2
Cristina Rodrigues Santos, Ângela M de Assis, Edson A Luz, Luzia Lyra, Ivan F Toro, José Claudio C Seabra, Dira H Daldin, Tathiane U Marcalto, Marcos T Galasso, Ronaldo F Macedo, Angélica Z Schreiber, Francisco H Aoki
BACKGROUND: Nested PCR can be used to determine the status of Pneumocystis jirovecii infection in other lung diseases. AIMS: This study sought to detect a target DNA fragment (mitochondrial large subunit rRNA or mtL SUrRNA) of P. jirovecii in patients with lung disease who underwent bronchoscopy with collection of bronchoalveolar lavage (BAL). METHODS: The results from toluidine blue staining were compared with those obtained using molecular methods that included an "in house" DNA extraction procedure, PCR and nested PCR...
February 14, 2017: Revista Iberoamericana de Micología
https://www.readbyqxmd.com/read/28214153/arrhythmogenic-right-ventricular-dysplasia-atypical-clinical-presentation
#3
José Marçalo, Luiz Menezes Falcão
A 67-year-old man was admitted to our hospital after episodes of syncope preceded by malaise and diffuse neck and chest discomfort. No family history of cardiac disease was reported. Laboratory workup was within normal limits, including D-dimers, serum troponin I and arterial blood gases. The electrocardiogram showed sinus rhythm with T-wave inversion in leads V1 to V3. Computed tomography angiography to investigate pulmonary embolism showed no abnormal findings. Transthoracic echocardiography (TTE) displayed massive enlargement of the right ventricle with intact interatrial septum and no pulmonary hypertension...
February 14, 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/28214126/pulmonary-nodules-in-african-migrants-caused-by-chronic-schistosomiasis
#4
REVIEW
Federico Gobbi, Dora Buonfrate, Andrea Angheben, Anna Beltrame, Matteo Bassetti, Luca Bertolaccini, Giuseppe Bogina, Simone Caia, Silvia Duranti, Maria Gobbo, Valentina Marchese, Stefania Marocco, Maria Merelli, Geraldo Monteiro, Alberto Terzi, Zeno Bisoffi
Schistosomiasis is a neglected tropical disease that can cause mainly hepatic and genitourinary damage, depending on the species. Involvement of the lungs has been commonly described in acute infection (Katayama syndrome) and chronic infection (pulmonary hypertension). Although rarely reported in the scientific literature, cases of lung nodules due to chronic schistosome infection are also possible and are probably more frequent than commonly thought. Here we report seven cases of African migrants who were diagnosed with chronic schistosomiasis and pulmonary nodules due to deposition of schistosome eggs, and we compare our findings to the case reports found in the scientific literature...
February 14, 2017: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28214002/relation-between-ventricular-premature-complexes-and-incident-heart-failure
#5
Vratika Agarwal, Eric Vittinghoff, Isaac R Whitman, Thomas A Dewland, Jonathan W Dukes, Gregory M Marcus
Ventricular premature complexes (VPCs) may represent a reversible cause of heart failure (HF); however, the type of patients most prone remains unknown. This study leverages a large population-based database to examine interactions that might prove clinically useful in risk-stratifying patients with VPCs. We used the California Healthcare Cost and Utilization Project to identify patients with VPCs and incident systolic HF from January 1, 2005, to December 31, 2009. We calculated hazard ratios for predictors of incident systolic HF using multivariable Cox proportional hazard models...
January 25, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28214001/comparison-of-pulmonary-venous-and-left-atrial-remodeling-in-patients-with-atrial-fibrillation-with-hypertrophic-cardiomyopathy-versus-with-hypertensive-heart-disease
#6
Kentaro Yoshida, Hideyuki Hasebe, Yasuaki Tsumagari, Hidekazu Tsuneoka, Mari Ebine, Yoshiko Uehara, Yoshihiro Seo, Kazutaka Aonuma, Noriyuki Takeyasu
Left ventricular diastolic dysfunction in hypertrophic cardiomyopathy (HC) increases susceptibility to atrial fibrillation. Although phenotypical characteristics of the hypertrophied left ventricle are clear, left atrial (LA) and pulmonary venous (PV) remodeling has rarely been investigated. This study aimed to identify differences in LA and PV remodeling between HC and hypertensive heart disease (HHD) using 3-dimensional computed tomography. Included were 33 consecutive patients with HC, 25 with HHD, and 29 without any co-morbidities who were referred for catheter ablation of atrial fibrillation...
January 25, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28213957/a-bosentan-pharmacokinetic-study-to-investigate-dosing-regimens-in-paediatric-patients-with-pulmonary-arterial-hypertension-future-3
#7
R M F Berger, M Gehin, M Beghetti, D Ivy, A Kusic-Pajic, P Cornelisse, S Grill, D Bonnet
AIM: To investigate whether increasing bosentan dosing frequency from 2 mg/kg twice daily (b.i.d.) to 2 mg/kg three times daily (t.i.d.) in children with pulmonary arterial hypertension (PAH) (from ≥3 months to <12 years of age) would increase exposure. METHODS: An open-label, prospective, randomised, multicentre, multiple-dose, Phase 3 study was conducted. Patients (n = 64) were randomised 1:1 to receive oral doses of bosentan of 2 mg/kg b.i...
February 18, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28213942/pge2-ep4-attenuated-mucosal-injury-via-%C3%AE-arr1-src-egfr-mediated-proliferation-in-portal-hypertensive-gastropathy
#8
Siwei Tan, Xiaoliang Chen, Minyi Xu, Xiaoli Huang, Huiling Liu, Jie Jiang, Yu Lu, Xiaojie Peng, Bin Wu
BACKGROUND AND PURPOSE: Portal hypertensive gastropathy (PHG) is a serious complication of liver cirrhosis and a potential cause of bleeding in patients associated with cirrhosis. Suppressed mucosal epithelial proliferation is a crucial pathological characteristic of PHG. Our studies demonstrated an important role of prostaglandin E2 (PGE2 ) and its E-type prostanoid 4 (EP4 ) receptor in the promotion of mucosal proliferation. However, whether β-arrestin1 (β-arr1), a well-established mediator of G-protein-coupled receptors (GPCRs), is involved in the PGE2 /EP4 -mediated mucosal proliferation complex in PHG remains unclear...
February 18, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28213937/targeting-phosphodiesterase-5-as-a-therapeutic-option-against-myocardial-ischemia-reperfusion-injury-and-in-treating-heart-failure
#9
REVIEW
Sevil Korkmaz-Icöz, Tamás Radovits, Gábor Szabó
Phosphodiesterase type 5 (PDE5) selectively hydrolyses the second messenger cyclic 3´-5´guanosine monophosphate (cGMP) into 5'-GMP, thereby regulating its intracellular concentrations. Dysregulation of the cGMP-dependent pathway plays a significant role in various cardiovascular diseases. Therefore, its modulation by drugs, such as PDE5 inhibitors, may represent an effective therapeutic approach. There are currently four PDE5 inhibitors available for the treatment of erectile dysfunction: sildenafil, vardenafil, tadalafil, and avanafil...
February 18, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28213877/improved-control-of-hypertension-following-laparoscopic-fundoplication-for-gastroesophageal-reflux-disease
#10
Zhiwei Hu, Meiping Chen, Jimin Wu, Qing Song, Chao Yan, Xing Du, Zhonggao Wang
This study aims to determine whether successful laparoscopic fundoplication for gastroesophageal reflux disease (GERD) can improve the control of hypertension. We conducted an observational study of GERD patients with hypertension. The esophageal and gastroesophageal symptoms of these patients were successfully treated with laparoscopic fundoplication, as measured by the reduced GERD symptoms and proton pump inhibitor consumption. A hypertension control scale was used to classify the use of antihypertensive medications and the quality of blood pressure control before and after anti-reflux surgery...
February 17, 2017: Frontiers of Medicine
https://www.readbyqxmd.com/read/28213866/5-aminosalicylic-acid-attenuates-monocrotaline-induced-pulmonary-arterial-hypertension-in-rats-by-increasing-the-expression-of-nur77
#11
Ling-Yue Sun, Zong-Ye Cai, Jun Pu, Jian Li, Jie-Yan Shen, Cheng-de Yang, Ben He
The aim of this study is to investigate the effect of 5-aminosalicylic acid (5-ASA) on monocrotaline (MCT)-induced pulmonary arterial hypertension (PAH) in rats and its molecular mechanism. Sixty male Sprague-Dawley rats (250-300 g) were evenly randomized into six groups: control group; PAH group induced by MCT intraperitoneal injection (50 mg/kg) on day 1; and four PAH groups treated for 30 days from day 2 with 5-ASA at 50 (5-ASA-50 group), 100 (5-ASA-100 group), 150 (5-ASA-150 group), and 200 mg/kg/day (5-ASA-200 group), respectively...
February 17, 2017: Inflammation
https://www.readbyqxmd.com/read/28213683/phase-ii-study-of-bevacizumab-and-irinotecan-as-second-line-therapy-for-patients-with-metastatic-colorectal-cancer-previously-treated-with-fluoropyrimidines-oxaliplatin-and-bevacizumab
#12
Hidekazu Kuramochi, Masayuki Ando, Michio Itabashi, Go Nakajima, Kazuyuki Kawakami, Mie Hamano, Eiichi Hirai, Hajime Yokomizo, Ryuji Okuyama, Tatsuo Araida, Kazuhiko Yoshimatsu, Shingo Kameoka, Kazuhiko Hayashi
PURPOSE: Fluorouracil and folinic acid with irinotecan (FOLFIRI) plus bevacizumab (BV) is widely used as second-line chemotherapy for patients with metastatic colorectal cancer (mCRC) previously treated with fluoropyrimidines, oxaliplatin, and BV. FOLFIRI requires a CV catheter and an infusion pump, which are inconvenient for patients. Sufficient data are not available for characterizing the effectiveness of fluoropyrimidines beyond first disease progression. In this study, we evaluated the efficacy and safety of irinotecan (CPT-11) plus BV as second-line therapy...
February 17, 2017: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/28213592/the-evidence-of-benefits-of-exercise-training-in-interstitial-lung-disease-a-randomised-controlled-trial
#13
Leona M Dowman, Christine F McDonald, Catherine J Hill, Annemarie L Lee, Kathryn Barker, Claire Boote, Ian Glaspole, Nicole S L Goh, Anne M Southcott, Angela T Burge, Rebecca Gillies, Alicia Martin, Anne E Holland
BACKGROUND: Uncertainty exists regarding the clinical relevance of exercise training across the range of interstitial lung diseases (ILDs). OBJECTIVE: To establish the impact of exercise training in patients with ILDs of differing aetiology and severity. METHODS: 142 participants with ILD (61 idiopathic pulmonary fibrosis (IPF), 22 asbestosis, 23 connective tissue disease-related ILD (CTD-ILD) and 36 with other aetiologies) were randomised to either 8 weeks of supervised exercise training or usual care...
February 17, 2017: Thorax
https://www.readbyqxmd.com/read/28213564/seven-year-tolerability-profile-of-glucocorticoids-use-in-early-rheumatoid-arthritis-data-from-the-espoir-cohort
#14
Camille Roubille, Nathalie Rincheval, Maxime Dougados, René-Marc Flipo, Jean-Pierre Daurès, Bernard Combe
OBJECTIVE: To explore the 7-year tolerability profile of glucocorticoids (GC) for early rheumatoid arthritis (RA). METHODS: We examined data for 602 patients with RA from the early arthritis Etude et Suivi des POlyarthrites Indifférenciées Récentes (ESPOIR) cohort (<6 months disease duration) stratified into two groups: with or without GC treatment at least once during follow-up (median 7 years (IQR 0.038-7.65)). The main outcome was a composite of death, cardiovascular disease (including myocardial ischaemia, cerebrovascular accident and heart failure), severe infection and fracture...
February 17, 2017: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/28213473/central-role-of-t-helper-17-cells-in-chronic-hypoxia-induced-pulmonary-hypertension
#15
Levi D Maston, David T Jones, Wieslawa Giermakowska, Tamara A Howard, Judy L Cannon, Wei Wang, Yongyi Wei, Weimin Xuan, Thomas C Resta, Laura V Gonzalez Bosc
RATIONALE: Inflammation is a prominent pathologic feature in pulmonary arterial hypertension as demonstrated by pulmonary vascular infiltration of inflammatory cells, including T and B lymphocytes. However, the contribution of the adaptive immune system is not well characterized in pulmonary hypertension caused by chronic hypoxia. CD4(+) T cells are required for initiating and maintaining inflammation, suggesting these cells could play an important role in the pathogenesis of hypoxic pulmonary hypertension...
February 17, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28213467/hypoxia-induces-arginase-ii-expression-and-increases-viable-human-pulmonary-artery-smooth-muscle-cell-numbers-via-ampk%C3%AE-1-signaling
#16
Jianjing Xue, Leif D Nelin, Bernadette Chen
Pulmonary artery smooth muscle cell (PASMC) proliferation is one of the hallmark features of hypoxia-induced pulmonary hypertension. With only supportive treatment options available for this life threatening disease, treating and preventing the proliferation of PASMCs is a viable therapeutic option. A key promoter of hypoxia-induced increases in the number of viable human PASMCs is arginase II, with attenuation of viable cell numbers following pharmacologic inhibition or siRNA knockdown of the enzyme. Additionally, increased levels of arginase have been demonstrated in the pulmonary vasculature of patients with pulmonary hypertension...
February 17, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28213404/hydrogen-sulfide-alleviates-hypertensive-kidney-dysfunction-through-an-epigenetic-mechanism
#17
Gregory Weber, Sathnur Pushpakumar, Utpal Sen
Hypertension is a major risk factor for chronic kidney disease (CKD) and renal inflammation is an integral part in this pathology. Hydrogen sulfide (H2S) has been shown to mitigate renal damage through reduction in blood pressure and reactive oxygen species; however, the exact mechanisms are not clear. While several studies have underlined the role of epigenetics in renal inflammation and dysfunction, the mechanisms through which epigenetic regulators play role in hypertension are not well defined. In this study, we sought to identify if microRNAs are dysregulated in response to angiotensin-II (Ang-II) induced hypertension in the kidney and whether H2S donor, GYY 4137, could reverse the microRNA alteration and kidney function...
February 17, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28213373/cost-effectiveness-of-the-2014-u-s-preventive-services-task-force-uspstf-recommendations-for-intensive-behavioral-counseling-interventions-for-adults-with-cardiovascular-risk-factors
#18
Ji Lin, Xiaohui Zhuo, Barbara Bardenheier, Deborah B Rolka, W Edward Gregg, Yuling Hong, Guijing Wang, Ann Albright, Ping Zhang
OBJECTIVE: In 2014, the U.S. Preventive Services Task Force (USPSTF) recommended behavioral counseling interventions for overweight or obese adults with the following known cardiovascular disease risk factors: impaired fasting glucose (IFG), hypertension, dyslipidemia, or metabolic syndrome. We assessed the long-term cost-effectiveness (CE) of implementing the recommended interventions in the U.S. RESEARCH DESIGN AND METHODS: We used a disease progression model to simulate the 25-year CE of the USPSTF recommendation for eligible U...
February 17, 2017: Diabetes Care
https://www.readbyqxmd.com/read/28213195/blunt-traumatic-brain-injury-patients-a-role-for-ct-angiography-of-the-head-to-evaluate-non-traumatic-etiologies
#19
REVIEW
Ha Nguyen, Ninh Doan, Michael Gelsomino, Saman Shabani
BACKGROUND: In the setting of trauma, the etiology of intracranial hemorrhage (ICH) is frequently attributed to the physical, traumatic event. Caution should still be directed towards non-traumatic (or spontaneous) etiologies responsible for the trauma, such as hypertension, cerebral amyloid angiopathy, aneurysms, vascular malformation, and hemorrhagic infarcts. The role for immediate CT angiography (CTA) remains controversial to evaluate for non-traumatic etiologies. METHODS: A systematic review of the available literature in Medline PubMed database...
February 14, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28213108/intestinal-transport-and-absorption-of-bioactive-phenolic-compounds-from-a-chemically-characterized-aqueous-extract-of-athrixia-phylicoides
#20
Sandra L Bowles, Yonela Ntamo, Christiaan J Malherbe, Abidemi M P Kappo, Johan Louw, Christo J F Muller
ETHNOPHARMACOLOGICAL RELEVANCE: Athrixia phylicoides (A. phylicoides), popularly known as "bush tea", is an indigenous aromatic shrub found in mountainous and grassland areas of the northern and eastern parts of southern Africa. The plant is traditionally used for the treatment of several ailments, including coughing, treating infected wounds, treating boils and sore throat, hypertension and heart disease. Potential anti-diabetic effects have also been demonstrated in vitro. AIM OF THE STUDY: To investigate the intestinal transport of prominent phenolic constituents, across a fully differentiated Caco-2 monolayer, using a characterized aqueous extract of A...
February 14, 2017: Journal of Ethnopharmacology
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